Dollar Falls Against Yen as Markets Weigh New U.S.-Japan Trade Deal and Japanese Political Uncertainty
July 23, 2025 – The U.S. dollar experienced mixed movement against major currencies on Wednesday, strengthening against the Swiss franc and euro while weakening against the Japanese yen. Market participants are cautiously digesting the implications of a recently announced U.S.-Japan trade agreement alongside political uncertainty surrounding Japanese Prime Minister Shigeru Ishiba’s future.
U.S.-Japan Trade Deal Shakes Markets
The U.S. and Japan struck a significant trade deal this week, with Japan agreeing to reduce tariffs on U.S. auto imports to 15%. In return, Japan will invest $550 billion through a package of U.S.-bound investments and loans. This agreement marks one of several recent deals brokered by the Trump administration following the introduction of sweeping global tariffs in April.
The trade accord reflects an important shift in bilateral economic relations and is expected to benefit auto manufacturers by easing trade barriers. However, the deal has not dispelled the market’s concerns about the durability of tariffs as a negotiating tool. Analysts suggest that ongoing tariff threats could continue to inject volatility into currency markets.
Yen Strengthens Amid Political Turbulence in Japan
Despite the positive trade news, the dollar weakened against the yen, falling to its lowest level since July 11 at 146.20 yen per dollar. The drop was largely driven by reports that Prime Minister Shigeru Ishiba might resign following a disappointing outcome in Japan’s recent upper house elections. Ishiba has publicly denied these rumors, calling them “completely unfounded,” yet the political uncertainty continues to weigh on investor sentiment.
Juan Perez, Senior Director of Trading at Monex USA, explained, "The main thing driving USD/JPY has to do with political anxiety as it looks like the prime minister is feeling some pressure to consider resigning." Political instability in Japan adds an unpredictable element to the currency’s outlook, complicating trader decisions.
Other Currency Movements and Market Trends
The dollar edged higher against the Swiss franc, breaking a three-day losing streak and trading at 0.79425 francs. It also gained slightly versus the euro, which itself recovered modestly to $1.17625 after early losses.
Meanwhile, the Australian dollar reached an eight-month high, rising 0.4% to US$0.6584, supported by broader market optimism. Sterling appreciated 0.26% against the dollar, trading at $1.35690. The overall dollar index, which measures the currency’s value against a basket that includes the yen and euro, declined 0.14% to 97.33, positioning it to record a fourth consecutive day of declines.
Tariff Talks Continue with EU
Reports indicate that the United States and the European Union are close to finalizing a similar trade deal. According to two diplomats speaking to Reuters, the agreement would impose a uniform 15% tariff on EU goods entering the U.S., mirroring terms established in the U.S.-Japan deal. This anticipated pact could stabilize transatlantic trade relations but also signals that tariffs will remain a key negotiating tool globally.
Jeff Young, Head of Investment Strategy at PGIM Quantitative Solutions, commented, "The market seems to expect a broad blanket tariff at around 10%, which has been largely priced in. The effects on the dollar are intertwined with broader macroeconomic factors, making it hard to separate tariff impacts from other market forces."
Looking Forward: Market Caution Amid Uncertain Timelines
Investors remain cautious, with an August 1 deadline looming for tariff negotiations. The dollar’s trajectory will likely depend on the outcome of these discussions and political developments in key economies such as Japan. For now, currency markets are balancing optimism from new trade deals against underlying anxieties about geopolitical stability and the future of protectionist policies.
Reporting by Alun John in London; Gertrude Chavez-Dreyfuss and Chibuike Oguh in New York; Additional reporting by Rocky Swift in Tokyo; Edited by Shri Navaratnam and Jacqueline Wong.
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